What does hyperkeratosis refer to?
(HY-per-KAYR-uh-TOH-sis) A condition marked by thickening of the outer layer of the skin, which is made of keratin (a tough, protective protein). It can result from normal use (corns, calluses), chronic inflammation (eczema), or genetic disorders (X-linked ichthyosis, ichthyosis vulgaris).
What can cause hyperkeratosis?
Causes and types
- actinic keratosis, which causes rough, sandpaper-like patches of skin to develop as a result of excess skin exposure.
- calluses.
- corns.
- eczema.
- epidermolytic hyperkeratosis, an inherited skin disorder present at birth.
- lichen planus, a condition that causes white patches to grow on the inside of the mouth.
How does hyperkeratosis work?
Hyperkeratosis is a thickening of the outer layer of the skin. This outer layer contains a tough, protective protein called keratin. This skin thickening is often part of the skin’s normal protection against rubbing, pressure and other forms of local irritation. It causes calluses and corns on hands and feet.
What is hyperkeratosis quizlet?
STUDY. T/F – Pedal corns are actually localized lichen simplex chronicus. True. =thickening of the skin with variable scaling arising 2E to repetitive scratching or rubbing.
What is hyperkeratosis Milady?
Retention hyperkeratosis – hereditary tendency for acne-prone skin to retain dead cells in the follicle.
How common is hyperkeratosis?
Epidermolytic hyperkeratosis (also known as “Bullous congenital ichthyosiform erythroderma,” “Bullous ichthyosiform erythroderma,” or “bullous congenital ichthyosiform erythroderma of Brocq”) is a rare skin disease in the ichthyosis family affecting around 1 in 250,000 people.
What are the different types of keratosis?
More specifically, it can refer to:
- actinic keratosis (also known as solar keratosis), a premalignant condition.
- chronic scar keratosis.
- hydrocarbon keratosis.
- keratosis pilaris (KP, also known as follicular keratosis)
- seborrheic keratosis, not premalignant.
Where do Steatomas usually appear?
The lesions are typically located on the upper trunk, neck, axillae, scrotum, and proximal extremities. A few isolated steatomas scattered in various parts of the body are of frequent occurrence. Occasionally, one sees large numbers of the pinhead-sized or the pea-sized lesions.